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Cheap flights from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport from £425

IAD — CMB
11 Oct — 18 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Dulles Intl to Colombo

Enter your travel dates to find the best prices.

Cheapest flights from Dulles Intl to Colombo

Sun 4/1015:10 -
1 stop38h 15m
Mon 19/1021:50 -
1 stop21h 25m
Deal found 10/9£669
Sat 3/1015:10 -
1 stop19h 55m
Tue 20/1004:10 -
1 stop39h 05m
Deal found 10/9£698
Fri 2/1015:10 -
1 stop38h 15m
Sun 25/1009:55 -
1 stop33h 40m
Deal found 10/9£728
Mon 14/907:57 -
2 stops27h 08m
Mon 21/910:00 -
1 stop33h 15m
Deal found 11/9£760
Sat 24/1011:05 -
1 stop19h 55m
Tue 27/1003:25 -
1 stop23h 00m
Deal found 10/9£772
Tue 27/1011:15 -
2 stops21h 40m
Fri 13/1109:15 -
1 stop33h 25m
Deal found 11/9£795
Mon 28/910:25 -
2 stops24h 40m
Sun 4/1016:20 -
1 stop26h 55m
Deal found 8/9£811
Sun 18/1010:55 -
2 stops22h 05m
Sat 7/1101:45 -
1 stop40h 55m
Deal found 11/9£832
Fri 9/1010:55 -
2 stops22h 05m
Sat 5/1220:15 -
2 stops46h 25m
Deal found 10/9£905

Find flight deals from Dulles Intl to Colombo

Round-trip from

£669

One-way from

£425

Popular in

December

Cheapest in

October

Average price

£718
Etihad Airways
  • Etihad Airways
  • 5/10-10/12
  • 2 total stops
  • 60h 00m total
  • Washington, D.C. to Colombo
Search Deals
27/10-31/12
  • 27/10-31/12
  • 2 total stops
  • 22h 17m total
  • Washington, D.C. to Colombo
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£110 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£27 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport that are best for you.

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Cheapest return flight
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Washington, D.C.Colombo

IAD Washington, D.C. Dulles Intl - CMB Colombo Bandaranaike Intl

IADCMB

Washington, D.C. Dulles Intl

Tue 27/10

12:28-20:15

2 stops22h 17m

Colombo Bandaranaike Intl

Wed 31/12

00:00-13:30

Nonstop0h 00m

£425

Washington, D.C.Colombo

IAD Washington, D.C. Dulles Intl - CMB Colombo Bandaranaike Intl

IADCMB

Washington, D.C. Dulles Intl

Fri 25/9

06:14-20:35

2 stops28h 51m

Colombo Bandaranaike Intl

Wed 31/12

00:00-13:30

Nonstop0h 00m

£454

Washington, D.C.Colombo

IAD Washington, D.C. Dulles Intl - CMB Colombo Bandaranaike Intl

IADCMB

Washington, D.C. Dulles Intl

Sat 31/10

15:35-20:15

1 stop19h 10m

Colombo Bandaranaike Intl

Thu 12/11

16:05-09:05

1 stop27h 30m

£698

Washington, D.C.Colombo

IAD Washington, D.C. Dulles Intl - CMB Colombo Bandaranaike Intl

IADCMB

Washington, D.C. Dulles Intl

Sun 1/11

14:35-20:15

1 stop19h 10m

Colombo Bandaranaike Intl

Fri 25/12

04:00-09:05

1 stop39h 35m

£698

Washington, D.C.Colombo

IAD Washington, D.C. Dulles Intl - CMB Colombo Bandaranaike Intl

IADCMB

Washington, D.C. Dulles Intl

Fri 12/2

14:35-02:50

1 stop25h 45m

Colombo Bandaranaike Intl

Mon 22/2

04:00-09:05

1 stop39h 35m

£758

Washington, D.C.Colombo

IAD Washington, D.C. Dulles Intl - CMB Colombo Bandaranaike Intl

IADCMB

Washington, D.C. Dulles Intl

Sat 24/10

11:05-16:30

1 stop19h 55m

Colombo Bandaranaike Intl

Tue 27/10

03:25-16:55

1 stop23h 00m

£772

Washington, D.C.Colombo

IAD Washington, D.C. Dulles Intl - CMB Colombo Bandaranaike Intl

IADCMB

Washington, D.C. Dulles Intl

Sat 13/2

14:35-14:50

1 stop37h 45m

Colombo Bandaranaike Intl

Sat 20/2

04:00-09:05

1 stop39h 35m

£788

Washington, D.C.Colombo

IAD Washington, D.C. Dulles Intl - CMB Colombo Bandaranaike Intl

IADCMB

Washington, D.C. Dulles Intl

Sun 27/9

10:55-18:30

2 stops22h 05m

Colombo Bandaranaike Intl

Mon 5/10

17:35-08:50

1 stop24h 45m

£795

Washington, D.C.Colombo

IAD Washington, D.C. Dulles Intl - CMB Colombo Bandaranaike Intl

IADCMB

Washington, D.C. Dulles Intl

Mon 28/9

10:25-20:35

2 stops24h 40m

Colombo Bandaranaike Intl

Sun 4/10

16:20-09:45

1 stop26h 55m

£827

Washington, D.C.Colombo

IAD Washington, D.C. Dulles Intl - CMB Colombo Bandaranaike Intl

IADCMB

Washington, D.C. Dulles Intl

Sat 13/2

10:30-18:25

2 stops21h 25m

Colombo Bandaranaike Intl

Sun 21/2

02:40-08:10

1 stop40h 00m

£832

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 13 resultsSorted by cheapest first
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Best time to book a flight from Dulles Intl to Colombo

Have a flexible travel schedule? Discover the best time to fly to Colombo from Dulles Intl with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport?

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport, you should look to book at least 44 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport (average of £647). Flying from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport in December is currently the most expensive (average of £1,217). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport?

Airfare is below average for this route at the moment.

Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport flights typically cost between £701 and £750 in October.
The cheapest return price found within the last 5 days was £669 on Etihad Airways (4 Oct–20 Oct).

Related info for your journey

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport?

    Etihad Airways can get you from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport in just under 19h 10m. Your travel time can differ by up to . Washington, D.C. Dulles Intl Airport and Colombo Bandaranaike Intl Airport are separated by a distance of 8928 mi.

  • Can I find deals for flights from Dulles Intl to Colombo that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Colombo flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Colombo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Colombo.

  • Can I find deals for business class flights from Dulles Intl to Colombo?

    Yes. Cheapflights offers flight deals from Dulles Intl to Colombo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport?

    Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport (average of £647). Flying from Washington, D.C. Dulles Intl Airport to Colombo Bandaranaike Intl Airport in December is currently the most expensive (average of £1,217). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Colombo Bandaranaike Intl Airport?

Book flights to Colombo Bandaranaike Intl Airport if you plan to visit one of these locations
Negombo

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Can Cheapflights find flights from Dulles Intl to Colombo with no change fees?

Certainly. Search results for flights to Colombo from Dulles Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Dulles Intl to Colombo become cheaper?

Yes, Cheapflights offers price alerts on Dulles Intl to Colombo flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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